Related Content

The teacher, Maria Quintana, said the student didn't even belong in her classroom and when she told the teen to leave, the situation escalated.

The teacher's sister, Marta, said she still can't get over what happened to her sister Friday at Baltimore City's Liberation Diploma Plus Academy.

"This just hit really close to home," Marta Quintana said. "She said, 'I've never seen someone so enraged.'"

Maria Quintana is a Spanish teacher at the alternative school. She said she was attacked by a 19-year-old student who walked into her classroom in a rage. When she told the student to leave, the student allegedly started throwing furniture at her.

At one point, Marta Quintana said her sister had to duck behind a board to keep from getting hit.

"As it smashed on the smartboard, her face was behind the smartboard, if it would've hit her, she would have been seriously injured tonight or dead," Marta Quintana said. "She said, 'I was very nice because I knew she was enraged and I didn't want to confront her head-on."

School officials confirmed the incident to 11 News. In a statement a representative wrote, "This incident is being investigated. The student is facing disciplinary action in accordance with the Baltimore City Public Schools Code of Conduct."

Marta Quintana said her sister suffered injuries to her leg and ankle in the attack.

"She is mentally very, very distraught. She keeps saying, 'I'm strong,' but at the same, she just time falters," Marta Quintana said.

The teacher does plan on filing charges Saturday.

In an unrelated incident in the 1990s, Maria Quintana had part of finger severed in run-in with another student.